Honing device



K. L. STOVALL HONING DEVICE Jan. 9, 1951 2,537,286

Filed July 19, 1946 2 Sheets-Sheet 1 )4 f? j INVENTOR.

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' K. L. STOVALL Jan. 9, 1951 HONING DEVICE Filed July 19, 1946 2 Sheets-Sheet 2 I INVQVTOR. lii'MVt/F/L. Jhmu.

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Patented Jan. 9, 1951 UNITED STATES, PATENT OFFICE HONING DEVICE Kenneth L. Stovall, Coos Bay, Oreg.

Application July 19, 1946, Serial No. 684,667

2 Claims. (01. 51-1843) being a central frame having a threaded drive shaft, said first frame being longitudinally adjustable on the shaft by means of an adjusting nut in mesh with the threads and rotatable with relation to the first frame, and a plurality of tool holders having inclined guideways receiving the dovetails for radial adjustment of the tool holders relative to the shaft upon rotation of said nut, said tool holders being provided with means maintaining their relative longitudinal positions with respect to the drive shaft regardless of the adjustment thereof.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is a view in front elevation of a device embodying the invention,

Fig. 2 is a section on line 2-2 of Fig. 1,

Fig. 3 is a top plan view, and

Fig. 4 is a diametrical view of the adjustment of the device, parts being in section.

There is provided a shaft I which may be power driven as desired and which may embody a universal joint if convenient. This shaft is provided with an enlarged screw threaded portion I2 and secured to the shaft there is a pair of radial spaced parallel blocks l4, these blocks comprising a second frame, and being drilled as shown in Fig. 4 at [6 for a purpose to be described.

In mesh. with the threads on shaft l0 there is a nut l8 having a flange on which rests a flange 22 of a frame member 24. The frame 24 extends downwardly and is provided with a leg at each side of the shaft 10, these legs terminating in pairs of spaced arms 26 each of which i provided with a dovetail 28 arranged at angles to the shaft and to each other to converge in a downward direction, see Fig. 1.

Slidably mounted in the holes [6 are pins 30 which are secured to a pair of diametrical opposed tool holders 32, these tool holders bein provided with slots 34 for the reception of elongated narrow honing tools 36 and it will be seen that the tool holders 32 are radially slidable toward and away from the central shaft 10.

Shaft l0 may be provided with a scale 38 and a nut 40 locks flange 20 as by an Allen head screw.

It will be seen that as shaft I0 rotates it carries therewith the second frame l4, I4 in turn rotating the tool holders 32, the latter being held against accidental displacement by means of the dovetails above described. Upon turning nut l8 the frame 24 is adjusted longitudinally of shaft I0 and since blocks H! are secured to shaft l0, frame 24 will move longitudinally of the shaft relative to tool holders 32 and in so doing the latter will be moved radially either inwardly or outwardly depending on the direction of rotation of nut I8.

The above described device will be seen to provide an accurate adjustment for honing tools for internal work and the working diameter. of the tool can be easily determined by the scale 38.

If desired, wiping elements 42 may be used between the stones 36.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than is set forth in the claims, but what I claim is:

1. Device of the class described comprising a drive shaft, a frame thereon, means to adjust the frame along the shaft, a second frame fixed to the shaft, both frames being rotatable with the shaft and together, generally radially movable tool holders, interengaging relatively slidable uide means between the tool holders and the second frame, and interengaging relatively slidable cam means between the first frame and the tool holders, said cam means being inclined relative to the axis of the shaft, said first frame comprising a pair of spaced legs and a connecting bridge, the shaft passing through the bridge, and the frame adjusting mean being supported on the bridge and engaging the shaft, one le of the first frame being located at each side of the bridge, the shaft being located between the legs, and said interengaging slidable cam means being located on the legs.

2. The device of claim 1 wherein the tool holders bridge the legs and the cam means include a pair of spaced cams on each tool holder engaging a cam on each leg.

KENNETH L. STOVALL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,545,406 Dresp July '7, 1925 1,828,074 Roebbel et a1. Oct. 20, 1931 1,918,077 Agostoni July 11, 1933 2,166,281 Beck July 18, 1939 2,304,930 Klein Dec. 15. 1942 

